Updated for 2026

ChatGPT CodexvsKiro

Not sure which fits your workflow in 2026? Compare pricing, features, and trade-offs — then switch tools below to explore more options in this category.

Category
Tool A
Tool B

ai-ide

ChatGPT Codex

ChatGPT Codex is an AI programming agent launched by OpenAI. It can autonomously understand code repositories, write code, fix bugs, run tests, and complete full software development tasks. However, it lacks code completion functionality and a professional coding interface.

Visit ChatGPT Codex

ai-ide

Kiro

Kiro is Amazon’s agentic IDE/CLI emphasizing specs, steering, hooks, and MCP integrations for production-minded workflows.

Visit Kiro

Basics

FeatureChatGPT CodexKiro
Released20252025
CompanyOpenAIAmazon (AWS)
CountryUnited StatesUnited States
Region / AvailabilityGlobal (OpenAI service availability)，excluding mainland China and Hong Konghttps://help.openai.com/en/articles/7947663-chatgpt-supported-countriesGlobal (AWS availability，third-party models are restricted based on their regional availability.)https://kiro.dev/pricing/#what-countries-or-regions-are-supported-for-individual-plans

Pricing comparison

PlanChatGPT CodexKiro
Modelfreemiumfreemium
Free tierYesYes
Starts at$8/mo$20/mo
Plan 1Free: $0Experience ChatGPT's core capabilities for free, ideal for casual users and first-time AI explorers.Free: FreeExperience kiro, 50 credits/month
Plan 2Go: $8/moA budget-friendly plan offering higher usage limits and a smoother ChatGPT experience.Pro: $20/mo1,000 credits/month
Plan 3Plus: $20/moThe flagship plan for individuals, unlocking more powerful models, Codex, and advanced AI features.Pro+: $40/mo2,000 credits/month
Plan 4Pro: $100/moBuilt for power users, delivering the highest usage limits and the full suite of AI agent capabilities.Pro Max: $100/mo5,000积分/月
Plan 5Team: $20/user/moDesigned for teams with shared workspaces, enterprise-grade security, and organizational knowledge management.Power: $200/mo10,000 credits/month

Feature checklist

FeatureChatGPT CodexKiro
Visual IDE UI✓✓
OS PlatformsmacOS / Windows / Linux / android / iOShttps://chatgpt.com/download/macOS / Windows / Linux / Mobilehttps://kiro.dev/downloads/
Third-party Models✗ (Can only use the ChatGPT model)✓
MCP / Plugins✓✓
Skills Support✓✓
VS Code Extension✓✗
JetBrains Plugin✓https://blog.jetbrains.com/ai/2026/01/codex-in-jetbrains-ides/✗
AI Autocomplete✗✓
Chat / Inline Agent✓✓
Multi-file Edit✓✓
Codebase Indexing✓✓
Terminal Integration✓✓
Local LLM Support✗✓
Open Source✗ (The Codex desktop app is closed-source, but the Codex CLI is open-source)https://github.com/openai/codex✗ (Only kiro-cli is open source; other core code is not)https://github.com/kirodotdev/Kiro
Team Collaboration✓✓
Privacy Mode✓✓
VS Code Compatible✗✓
Autonomous Agent✓✓
Git Integration✓✓
Use CaseOpenAI Codex / ChatGPT coding agent for building and refactoring softwareSpec-driven agentic IDE/CLI for structured AWS-oriented development

Pros & cons

ChatGPT Codex

  • Backed by OpenAI frontier models
  • Strong autonomous coding / task agent workflows
  • Multi-agent collaboration / Long-running and complex tasks
  • Environmental autonomy and security sandbox
  • Branding overlaps with ChatGPT chat — easy to confuse
  • Lacking a professional coding interface like classic VS Code
  • Can only use the ChatGPT model, unable to add models from other providers

Kiro

  • Spec-driven workflow before coding
  • First-class MCP + hooks / steering
  • IDE + CLI coverage from AWS
  • Newer product; polish still catching up
  • Highly engineered, difficult for beginners to get started
  • AWS-centric positioning may not fit every stack
  • JetBrains support is via ACP, not a native plugin

Dimension scores

Editorial 0–10 scores across shared dimensions — higher is better for that axis.

DimensionChatGPT CodexKiro
Capability
9.0
7.8
Privacy
6.7
7.5
Value
7.5
7.0
Depth
8.6
7.5
Ecosystem
9.0
8.5
DX
8.8
7.8
CapabilityPrivacyValueDepthEcosystemDX
  • ChatGPT Codex
  • Kiro

FAQ

Is ChatGPT Codex better than Kiro? (2026)

It depends on workflow. ChatGPT Codex emphasizes chatgpt codex is a professional ai coding agent launched by openai. Kiro emphasizes amazon’s spec-driven agentic ide and cli for structured ai development. Use the feature checklist above for your stack.

Which use cases fit ChatGPT Codex vs Kiro?
  • ChatGPT Codex: OpenAI Codex / ChatGPT coding agent for building and refactoring software
  • Kiro: Spec-driven agentic IDE/CLI for structured AWS-oriented development
What are the main differences between ChatGPT Codex and Kiro?
  • OS Platforms: ChatGPT Codex (macOS / Windows / Linux / android / iOS) vs Kiro (macOS / Windows / Linux / Mobile)
  • Third-party Models: ChatGPT Codex (no (Can only use the ChatGPT model)) vs Kiro (yes)
  • VS Code Extension: ChatGPT Codex (yes) vs Kiro (no)
  • JetBrains Plugin: ChatGPT Codex (yes) vs Kiro (no)
  • AI Autocomplete: ChatGPT Codex (no) vs Kiro (yes)
How do ChatGPT Codex and Kiro compare on pricing?

ChatGPT Codex pricing overview:

  • Has a free tier
  • Pricing model: freemium
  • Starting from ~$8/mo
  • Plan Free: $0
  • Plan Go: $8/mo
  • Plan Plus: $20/mo

Kiro pricing overview:

  • Has a free tier
  • Pricing model: freemium
  • Starting from ~$20/mo
  • Plan Free: Free
  • Plan Pro: $20/mo
  • Plan Pro+: $40/mo

Always verify current prices on the vendor site before buying.

Do ChatGPT Codex and Kiro offer a free tier?
  • ChatGPT Codex: Has a free tier
  • Kiro: Has a free tier
Are ChatGPT Codex and Kiro open source?
  • ChatGPT Codex: no (The Codex desktop app is closed-source, but the Codex CLI is open-source)
  • Kiro: no (Only kiro-cli is open source; other core code is not)
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Related alternatives

ChatGPT Codex alternatives

Kiro alternatives

Disclaimer:Not Financial or Investment Advice, Educational/Dev Tool Comparison Only. Information may change; always verify pricing on the vendor site before purchasing.